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1. ping module The ping module is used to check whether the control node and the controlled node are unblocked. pong means on [root@localhost .ssh]# ansible all -m ping 192.168.65.128 | SUCCESS => { "ansible_facts": { "discovered_interpreter_python": "/usr/bin/python" }, "changed": false, "ping": "pong" } 2 ...

  comprehensive review of virtual cloud computing   review question 1:   I. multiple choice questions (3 points for each question, 48 points in total)    1. (multiple choice) common types of virtualization are ABCD.   (A) server virtualization   (B) desktop virtualization   (C) storage virtualizati ...

docker network Docker network can be divided into container network on a single host and network across multiple hosts docker network type View docker's native network [root@docker01 ~]# docker network ls NETWORK ID NAME DRIVER SCOPE 68f4c1f9f020 bridge bridge local ...

Preface: learn the video notes of UP master crazy God in station B Video link brief introduction What is Nginx Nginx (enginex) is a high-performance HTP and reverse proxy web server. It also provides IMAP/POP3/SMTP services. Nginx was developed by Igor sesoyev for Ramberru site (in Russian: PaM6nep), the second most visited site in Russia. T ...

1, References Ubuntu/Linux user management and permission management (super detailed analysis) 2, Key instructions 1. root user 1.1 set root user password sudo passwd root # output yichao@yichao:~$ sudo passwd root [sudo] yichao Password for: Enter a new UNIX password: Re enter the new UNIX password: passwd: The password was successfu ...

summary GitLab is an open source project for warehouse management system. It uses Git as a code management tool and builds a Web service on this basis. Implement a self managed Git project repository, which can access public or private projects through the Web interface. Ability to browse source code, manage defects and comments. It can manage ...

I/O multiplexing means that multiple descriptors can be monitored through a mechanism. Once a descriptor is ready (generally read ready or write ready), it can notify the program to perform corresponding read-write operations. When the native socket client establishes a connection with the server, that is, when the server calls the accept metho ...

1Ansible common module details 1.1 module introduction Modules are tools for temporary commands to complete tasks. Ansible provides hundreds of modules that can complete different tasks. Usually, we can find a tested special module to complete the required tasks as part of the standard installationThe ansible doc - L command can list all ...

Build Nginx deployment vue project under Ubuntu Previous: deploying SpringBoot under Ubuntu Step 1: install nodejs on Ubuntu Execute the apt install nodejs command to install nodejs. There are many examples in the article before the process. I won't say more. During the process, there will be a prompt to confirm the occupation of disk sp ...

Buffer Overflow Attack Lab (Set-UID Version) Lab link: https://seedsecuritylabs.org/Labs_20.04/Software/Buffer_Overflow_Setuid/ Experimental environment: ubuntu20 04 The aim of the attack is to obtain the uid permission of the attack buffer file by using the attack buffer permission of the over set Experimental documents: Labsetup.zip Expe ...